--TEST--
SPL: iterator_apply()
--FILE--
<?php

function my_error_handler($errno, $errstr, $errfile, $errline) {
	echo "Error: $errstr\n";
}

set_error_handler('my_error_handler');

function test_arg($arg)
{
	if ($arg instanceof Iterator)
	{
		var_dump($arg->key());
		var_dump($arg->current());
	}
	else
	{
		var_dump($arg);
	}
	return true;
}

function test()
{
	static $arg = 0;
	var_dump($arg++);
	return true;
}

$it = new RecursiveArrayIterator(array(1, array(21, 22), 3));

var_dump(iterator_apply($it, 'test', NULL));

echo "===ARGS===\n";
var_dump(iterator_apply($it, 'test_arg', array($it)));

echo "===RECURSIVE===\n";
$it = new RecursiveIteratorIterator($it);
var_dump(iterator_apply($it, 'test'));

echo "===ERRORS===\n";
try {
	var_dump(iterator_apply($it, 'test', 1));
} catch (Error $e) {
	my_error_handler($e->getCode(), $e->getMessage(), $e->getFile(), $e->getLine());
}
var_dump(iterator_apply($it, 'non_existing_function'));
var_dump(iterator_apply($it, 'non_existing_function', NULL, 2));

?>
===DONE===
<?php exit(0); ?>
--EXPECT--
int(0)
int(1)
int(2)
int(3)
===ARGS===
int(0)
int(1)
int(1)
array(2) {
  [0]=>
  int(21)
  [1]=>
  int(22)
}
int(2)
int(3)
int(3)
===RECURSIVE===
int(3)
int(4)
int(5)
int(6)
int(4)
===ERRORS===
Error: Argument 3 passed to iterator_apply() must be of the type array or null, integer given
Error: iterator_apply() expects parameter 2 to be a valid callback, function 'non_existing_function' not found or invalid function name
NULL
Error: iterator_apply() expects at most 3 parameters, 4 given
NULL
===DONE===
